For professional brews, I really like 1554 and Edmond Fitzgrald. Any porter is really worth drinking except maybe Bell's, that one wasn't very good in my opinion.

I did find away to make a small stout, and by that I mean it is as drinkable as a pale ale and doesn't have the think mouth feel most associate with the style. That's one of my top three homebrews and will be made again.